Downhole brush tool



FIG. 1 is a front view of a downhole brush tool showing my new design.

FIG. 2 is a left side view of the downhole brush tool.

FIG. 3 is a rear view of the downhole brush tool.

FIG. 4 is a right side view of the downhole brush tool.

FIG. 5 is a bottom view of the downhole brush tool.

FIG. 6 is a top view of the downhole brush tool; and,

FIG. 7 is an isometric view of the downhole brush tool. 

The ornamental design for a downhole brush tool, as shown and described. 